Governor for spring-motors.



No. 818,830. PATENTED APR. 24, 1906.

- W. B. KIRBY.

GOVERNOR FOR SPRING MOTORS.

APPLICATION FILED APB.11, 1905.

ILLILIIIIIIIIIIIIIIHIIIIIIIIIFQ ATTUHIVE UNITE@ STATES PATENT OFFIOE.

Specification of Letters Patent.

Patented April 24, 1906.

Application filed April 11.1905. Serial No. 254,937.

To nl?. lef/1.0721, t may concern.-

Be it known that I, vWILLIAM BUCKING- HAM KIRBY, a citizen of the United States, and a resident of Telling-ton, in the county of Oollingsworth and State of Texas, have invented a new and Improved Governor for Spring-Motors, of which the following is a full, clear, and exact description.

My invention relates to governors, and has for its object to produce a governor of general efficiency and simple construction and which while especially adapted for springmotors is also adapted for use with other motors.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate correspondingparts in all the figures.

Figure 1 is an end elevation showing the governor with its movable parts in one position. Fig. 2 is a detail showing the governor with said parts in another position, and Fig. 3 is a fragmentary section on the line 2 2 of Fig. 2 looking in the direction of the arrow.

A represents a spring-motor, in the frame 6 of which is mounted the horizontal shaft 39, which is driven by a train of gearing from the shaft 15 of the spring 21. The shaft 39 carries a bevel-pinion 40, which meshes with the bevel gear-wheel 41 on the lower end of the shaft 42. The spindle 42 is mounted at its lower end in the bracket 35, secured within the frame, and its upper end is mounted in the bracket 44, projecting upwardly from the frame.

A bevel-pinion 47 is rigidly mounted on the upper end of the spindle 42 and meshes with the bevel-pinion 48, which is loosely mounted upon the boss 49, projecting from the bracket 44, and meshes with the bevel-pinion 50, loose on the spindle 42. Upon the spindle 42 are loosely mounted the sleeves 53, to which the toggle-levers 53 are pivoted, the said levers being provided with weights 54, which are thrown out by centrifugal force. The upper sleeve 53a carries the pinion 5() and rests upon the collar 50kl on the spindle 42. A spiral spring 55, arranged between the lower sleeve 53d and the collar 42a on the spindle, keeps the weights of the toggle-levers normally down or in their lowermost position. The collar 421L is preferably elongated, as shown, for a purpose hereinafter described. Links 52, pivoted to each other and to the toggle-levers 53, are arranged on opposite sides of the spindle, and to the said links at their pivotal connection with each other brake-shoes 51 are secured. These shoes when the weights of the toggle-levers are thrown out by centrifugal force are thrown inward toward each other and into engagement with the collar 42il of the spindle. It will of course be understood that the shoes may be made to engage directly with the spindle 42 instead of the collar 42a.

The operation is as follows: Then the niotor is running, motion is transmitted to the shaft 39 and through the pinion 40 and gearwheel 41 to the spindle 42, and the motion of the said spindle is transmitted to the togglelevers 53 through the bevel-pinions 47, 4S, and 50, so as to revolve the said toggle-levers in a direction opposite to that of the spindle. Vhen, therefore, the motion becomes excessive and the toggle-levers are thrown out by centrifugal force, the brake-shoes will be thrown into engagement with the collar on the spindle, and the shoes revolving in a direction opposite to that of the spindle the speed of the motor will be quickly checked.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a governor, a revoluble spindle, a centrifugal mechanism upon the spindle and brake-shoes carried by the centrifugal mechanism and engaging the said spindle.

2. In a governor, a revoluble spindle, brakeshoes mounted to revolve in a direction opposite to that of the spindle, and mechanism for forcing the shoes into engagement with the spindle.

8. In a governor, a revoluble spindle, a centrifugal mechanism mounted to revolve in a direction opposite to that of the spindle, and brake-shoes carried by the centrifugal mechanism and adapted to engage the said spindle.

4. In a governor, a revoluble spindle, a centrifugal mechanism mounted to turn on the spindle, means for operating the centrifugal mechanism from the spindle, and a brake carried by the centrifugal mechanism and moved into engagement with the spindle when the speed becomes excessive.

5. In a governor, a spindle, a centrifugal mechanism mounted to turn on the spindle, means for revolving the spindle and centrifugal mechanism in opposite directions, and a brake carried by the centrifugal mechanism and moved into engagement with the spindle when the speed becomes excessive.

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6. In a governor, a spindle, Weighted toggles mounted to turn on the spindle, means for revolving the spindle and toggles in opposite directions, links connected With the tog- 5 gles, and brake-shoes carried by the said links.

7. In a governor, a spindle, springpressed toggles mounted to Jmirn on the spindle and provided With Weights, means Jfor revolving the spindle and toggles in opposite directions,

' brake-shoes, and links pivoted to the brake- 1o shoes and to the toggles.

In testimony whereof I have signed my name to this specification in Jche presence of Jwvo subscribing Witnesses.

WILLIAM BUCKINGHAM KIRBY.

Witnesses:

L. H. STALL, O. L. CoNoH. 

